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International Filtration News provides ongoing coverage of filtration technology for cleanrooms. Visit regularly to stay on top of the latest insights, issues and innovations in filtration for cleanrooms.

ISO 29463 — a global standard for HEPA and ULPA filters

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Mechanisms for particle filtration

HEPA and ULPA filters have been in use around the world for many years. The first HEPA filter was developed in the late 1940s. The original procedures to test these filters were also developed around the same time. Although these original test procedures are still practiced in the U.S.